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| author | Martijn van Beurden <mvanb1@gmail.com> | 2022-10-11 19:24:35 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2022-12-26 21:15:36 +0100 |
| commit | 909cfdc2059a53ffb55af3b9e0aadcaacae4a339 (patch) | |
| tree | 274d6543dd851195daa27f7536978d27f97710df /libavcodec/mathops.h | |
| parent | eeb280f3518a8d7fc2e45f06ac7748f42d8a0000 (diff) | |
| download | ffmpeg-909cfdc2059a53ffb55af3b9e0aadcaacae4a339.tar.gz | |
libavcodec/flacdec: Implement decoding of 32 bit-per-sample PCM
Add decoding of FLAC files coding for 32 bit-per-sample PCM to libavcodec.
Diffstat (limited to 'libavcodec/mathops.h')
| -rw-r--r-- | libavcodec/mathops.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/mathops.h b/libavcodec/mathops.h index c89054d6ed..a1dc323304 100644 --- a/libavcodec/mathops.h +++ b/libavcodec/mathops.h @@ -138,6 +138,15 @@ static inline av_const int sign_extend(int val, unsigned bits) } #endif +#ifndef sign_extend64 +static inline av_const int64_t sign_extend64(int64_t val, unsigned bits) +{ + unsigned shift = 8 * sizeof(int64_t) - bits; + union { uint64_t u; int64_t s; } v = { (uint64_t) val << shift }; + return v.s >> shift; +} +#endif + #ifndef zero_extend static inline av_const unsigned zero_extend(unsigned val, unsigned bits) { |